应用CATIA的蜗形凸轮三维造型与数控加工  

3D Modeling and NC Machining of Volute Cam Based on CATIA

作　　者：张勤[1] 魏保立[1] 

机构地区：[1]郑州铁路职业技术学院,河南郑州450052

出　　处：《工程图学学报》2009年第4期193-197,共5页Journal of Engineering Graphics

摘　　要：从工程实际出发,研究了蜗形凸轮机构的传动原理,分析了蜗形凸轮的基本参数,通过坐标变换法建立了蜗形凸轮工作廓面的方程。利用CATIA软件对工作廓面进行曲线和曲面拟合,生成蜗形凸轮的轮坯实体。根据制定的加工工艺利用CATIA软件进行了数控加工的程序编制和数控仿真。最后利用CATIA软件的数据传送模块将加工程序传送到数控加工中心进行加工。经检验符合设计要求。The transmission principle of volute cam mechanism is researched, the basic parameters of volute cam are analyzed, and the cam working surface equations are established through the coordinate transformation method. The curves and surface fitting to volute cam are executed using CATIA, thus the cam solid model can be generated. NC programming and NC machining simulation are carried out in CATIA according to the specified machining processes. Finally, the NC program is transportted to CNC through data transport module of CATIA. Through inspecting, the finished part of volute cam is verified having good quality.

关 键 词：计算机应用 蜗形凸轮数控加工 蜗形凸轮三维造型 CATIA软件应用 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]